Datasheet

LT3971A/LT3971A-5
22
3971af
TYPICAL APPLICATIONS
10pF
SW
FB
SS
RT
V
IN
V
IN
4.3V TO 27V
V
OUT
1.8V
1.3A
4.7µF
0.47µF
100µF
1M
118k
f = 400kHz
4.7µH
511k
GND
SYNC
OFF ON
LT3971A
3971A TA05
EN BOOST
PG
BD
10pF
SW
FB
SS
RT
V
IN
V
IN
15V TO 38V
V
OUT
12V
1.3A
10µF
0.47µF
10µF
110k
49.9k
f = 800kHz
10µH
1M
GND
BD
SYNC
OFF ON
LT3971A
3971A TA06
EN BOOST
PG
10pF
SW
FB
SS
RT
V
IN
V
IN
6V TO 38V
V
OUT
3.3V
1.3A
4.7µF
0.47µF
22µF
562k
49.9k
4.7µH
1M
GND
PG PGOOD
SYNC
LT3971A
3971A TA07
EN
BOOST
BD
150k
5M
1M
100k
1nF
f = 800kHz
10pF
SW
FB
SS
RT
V
IN
V
IN
10V TO 25V
V
OUT
5V
1.3A
2.2µF
0.47µF
22µF
309k
11k
f = 2MHz
2.2µH
1M
GND
BD
SYNC
OFF ON
LT3971A
3971A TA08
EN BOOST
PG
1nF
1.8V Step-Down Converter 12V Step-Down Converter
3.3V Step-Down Converter with Undervoltage Lockout, Soft-Start, and Power Good
5V, 2MHz Step-Down Converter with Soft-Start